"We expect to hold an EU-led/E3+3 round of talks in advance of the ministerial meetings at UNGA at a location to be determined," said Michael Mann, spokesman for EU foreign policy chief Ashton.
"We will also likely hold a meeting on the sidelines of UNGA -- as we did last year -- possibly with ministers participating in some way," Mann said in an emailed statement. "The specific details remain to be worked out."
Such an accord is aimed at easing fears once and for all that the Islamic republic might use its civilian nuclear programme to build an atomic bomb, something Tehran has always denied.
Today US and Iranian officials were due to meet in Geneva for one-on-one talks, the State Department said.